Characterization of tire and road wear particles from road runoff indicates highly dynamic particle properties

Abstract Tire and road wear particles (TRWPs) are heteroagglomerates of tire rubber and other particles deposited on the road surface and one of the main contributors to non-exhaust emissions of automobile traffic. In this study, samples from road environments were analyzed for their TRWP contents and concentrations of eight organic tire constituents. TRWP concentrations were determined by quantifying Zn in the density fraction 100 µm). Data for a sedimentation basin indicate that the fine fraction (